Physicists create new form of antenna for radio waves

https://phys.org/news/2023-10-physicists-antenna-radio.html

"small glass bulb containing an atomic vapor to demonstrate a new form of antenna for radio waves. The bulb was "wired  with laser beams and could therefore be placed far from any receiver electronics... highly sensitive, broad tunability, small, no metal parts, atomic sensor accessed via laser light instead of electric cables... 30m distance using a free-space laser link adding flexibility to Rydberg-atom based sensing... robust and cost-effective quantum sensors, satellites, defense"